History

On the prison transport X.A.N.A. possessed him, giving him the him enhanced abilities and the power to escape and take out the police guarding him.

He then proceeds to rob a military transport that is carrying uranium that X.A.N.A. needs to power the super computer that it resides in. Because of the low battery power in the computer X.A.N.A. keeps shutting down on and off so Duncan keeps blacking out on the way to the factory. So he kidnaps Jeremy so he can replace the battery for him.

Jeremy does so which restores both X.A.N.A. and Aelita. Because of this X.A.N.A. is then able to restore his possession to Duncan and has him try to kill Jeremy and the others however Aelita is able to deactivate the tower in time and Peter is freed from X.A.N.A.'s control.

After he was freed he was unconscious so the Lyoko warriors drop him off at the police station before he wakes up and is presumably taken to jail.